Arrange the following compounds in increasing order of boiling point. Propan- 1-ol. butan-l-ol. butan-2-ol. pentan- 1-ol
I. Propan- 1-ol. butan-2-ol. butan- 1-ol. pentan- 1-ol
II. Propan- 1 -ol. butan- 1 -ol. butan-2-ol. pentan- 1 -ol
III. Pentan-l-ol. butan-2-ol. butan- 1 -ol. propan- 1-ol
IV. Pentan-l-ol. butan- 1-ol. butan-2-ol. propan- 1-ol
Arrange the following compounds in increasing order of boiling point. Propan- 1-ol. butan-l-ol. butan-2-ol. pentan- 1-ol
I. Propan- 1-ol. butan-2-ol. butan- 1-ol. pentan- 1-ol
II. Propan- 1 -ol. butan- 1 -ol. butan-2-ol. pentan- 1 -ol
III. Pentan-l-ol. butan-2-ol. butan- 1 -ol. propan- 1-ol
IV. Pentan-l-ol. butan- 1-ol. butan-2-ol. propan- 1-ol
This is a multiple choice answer as classified in NCERT Exemplar
(I) Propan- 1-ol. butan-2-ol. butan- 1-ol. pentan- 1-ol
The compounds Propan-l-ol, butan-2-ol, butan-1-ol, pentan-1-ol belong to the alcohol family. The structure of the given alcohols are as shown below:

With increase in the molecular
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Chemistry NCERT Exemplar Solutions Class 12th Chapter Eleven 2025
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